DE69003648D1 - METHOD FOR PRODUCING ALKOXYBENZALDEHYDES. - Google Patents
METHOD FOR PRODUCING ALKOXYBENZALDEHYDES.Info
- Publication number
- DE69003648D1 DE69003648D1 DE90402786T DE69003648T DE69003648D1 DE 69003648 D1 DE69003648 D1 DE 69003648D1 DE 90402786 T DE90402786 T DE 90402786T DE 69003648 T DE69003648 T DE 69003648T DE 69003648 D1 DE69003648 D1 DE 69003648D1
- Authority
- DE
- Germany
- Prior art keywords
- alkoxybenzaldehydes
- hydroxybenzaldehydes
- preparation
- halobenzaldehydes
- halo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
- C07C45/70—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction with functional groups containing oxygen only in singly bound form
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Process for the preparation of alkoxybenzaldehydes from halobenzaldehydes. The invention relates more particularly to the preparation of 3-alkoxy-4-hydroxybenzaldehydes from 3-halo-4-hydroxy- benzaldehydes and of 5-alkoxy-2-hydroxybenzaldehydes from 5-halo- 2-hydroxybenzaldehydes. More precisely, the invention consists of a process for the preparation of alkoxybenzaldehydes by reaction of halobenzaldehydes with an alkali metal or alkaline-earth metal alcoholate in the presence of copper or of a copper compound, characterised in that it is carried out in the presence of an effective quantity of an organic carbonate, of a mixed organometallic carbonate, of carbon dioxide or of a compound capable of forming carbon dioxide in the reaction mixture.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8913370A FR2652808B1 (en) | 1989-10-09 | 1989-10-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69003648D1 true DE69003648D1 (en) | 1993-11-04 |
DE69003648T2 DE69003648T2 (en) | 1994-03-24 |
Family
ID=9386345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE90402786T Expired - Fee Related DE69003648T2 (en) | 1989-10-09 | 1990-10-08 | Process for the preparation of alkoxybenzaldehydes. |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0423010B1 (en) |
JP (1) | JPH03193742A (en) |
AT (1) | ATE95157T1 (en) |
AU (1) | AU6395790A (en) |
BR (1) | BR9005018A (en) |
CA (1) | CA2027014A1 (en) |
DE (1) | DE69003648T2 (en) |
FI (1) | FI904950A0 (en) |
FR (1) | FR2652808B1 (en) |
IE (1) | IE903608A1 (en) |
IL (1) | IL95925A0 (en) |
NO (1) | NO904328L (en) |
PT (1) | PT95536A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0463946A1 (en) * | 1990-06-27 | 1992-01-02 | Rhone-Poulenc Chimie | Process for the preparation of polyalkoxylated aromatic compounds |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE723412C (en) * | 1940-05-12 | 1942-09-02 | Fahlberg List Ag Chemische Fab | Process for the methoxylation of p-cresol and p-oxybenzaldehyde |
BE789586A (en) * | 1972-03-27 | 1973-04-02 | Hoffmann La Roche | PROCESS FOR THE PREPARATION OF 3,4,5-TRIMETHOXY-BENZALDEHYDE |
US4218567A (en) * | 1978-05-30 | 1980-08-19 | Hoffmann-La Roche Inc. | Process for aromatic ethers |
GB2089672A (en) * | 1980-12-17 | 1982-06-30 | Sterwin Ag | Processes for substitution of aromatic compounds |
EP0155335A1 (en) * | 1984-03-21 | 1985-09-25 | LUDWIG HEUMANN & CO GMBH | Process for the preparation of 3,5-dimethoxy-4-alkoxy-benzaldehydes |
-
1989
- 1989-10-09 FR FR8913370A patent/FR2652808B1/fr not_active Expired - Fee Related
-
1990
- 1990-10-05 CA CA002027014A patent/CA2027014A1/en not_active Abandoned
- 1990-10-05 NO NO90904328A patent/NO904328L/en unknown
- 1990-10-05 BR BR909005018A patent/BR9005018A/en unknown
- 1990-10-08 DE DE90402786T patent/DE69003648T2/en not_active Expired - Fee Related
- 1990-10-08 AT AT90402786T patent/ATE95157T1/en not_active IP Right Cessation
- 1990-10-08 PT PT95536A patent/PT95536A/en not_active Application Discontinuation
- 1990-10-08 FI FI904950A patent/FI904950A0/en not_active Application Discontinuation
- 1990-10-08 EP EP90402786A patent/EP0423010B1/en not_active Expired - Lifetime
- 1990-10-09 AU AU63957/90A patent/AU6395790A/en not_active Abandoned
- 1990-10-09 IE IE360890A patent/IE903608A1/en unknown
- 1990-10-09 IL IL9095925A patent/IL95925A0/en not_active IP Right Cessation
- 1990-10-09 JP JP2269704A patent/JPH03193742A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2652808A1 (en) | 1991-04-12 |
IE903608A1 (en) | 1991-05-08 |
CA2027014A1 (en) | 1991-04-10 |
NO904328D0 (en) | 1990-10-05 |
BR9005018A (en) | 1991-09-10 |
IL95925A0 (en) | 1991-07-18 |
ATE95157T1 (en) | 1993-10-15 |
JPH03193742A (en) | 1991-08-23 |
EP0423010B1 (en) | 1993-09-29 |
DE69003648T2 (en) | 1994-03-24 |
AU6395790A (en) | 1991-04-11 |
PT95536A (en) | 1991-08-14 |
EP0423010A1 (en) | 1991-04-17 |
FI904950A0 (en) | 1990-10-08 |
FR2652808B1 (en) | 1994-01-28 |
NO904328L (en) | 1991-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |